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  4. Orientation Dependence of Plasmonically Enhanced Spontaneous Emission
 
research article

Orientation Dependence of Plasmonically Enhanced Spontaneous Emission

Raziman, T. V.
•
Martin, O.J. F.
2016
Journal Of Physical Chemistry C

We computationally explore how the orientation of dipolar emitters placed near plasmonic nanostructures affects their radiative enhancement and spontaneous emission rate. We demonstrate that the expressions for these quantities show a subtle dependence on the molecular orientation, and this information is lost when typical calculations assume a random orientation and perform an average over;all directions. This orientation dependence is strongly affected by the location of the emitter, the emission wavelength, and the symmetry of the system. While the plasmonic nanostructure can significantly modify the far-field from a molecule in its vicinity, this modification is heavily dependent on both the wavelength and the orientation of the emitter. We show that if a fluorescent molecule can be constrained to emit in a specific direction, we are able to obtain far superior; control over its spontaneous emission and decay rate than otherwise and discuss implications for single molecule experiments.

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Type
research article
DOI
10.1021/acs.jpcc.6b03297
Web of Science ID

WOS:000384034600066

Author(s)
Raziman, T. V.
Martin, O.J. F.
Date Issued

2016

Publisher

American Chemical Society

Published in
Journal Of Physical Chemistry C
Volume

120

Issue

37

Start page

21037

End page

21046

Subjects

Nanophotonics

•

Plasmonics

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
NAM  
Available on Infoscience
November 21, 2016
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/131474
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